An investigation into a vampire fetish community eventually wrapped up with Rick Castle throwing an epic Halloween bash for all of his friends. Castle actually wore two costumes in Castle Season 2 Episode 6, “Vampire Weekend” The first was from Nathan Fillion’s cult favorite Firefly character Capt. Mal Reynolds but for the actual party he dressed as one of his favorite authors, Edgar Allen Poe. Our favorites were Lanie as Cat Woman and Martha as Cruella de Vil.